Connecting mainframe terminals using Uipath

Hi all,
I’m new to uipath and already searched about this topic in forum. But not successfully implemented, Can anyone please tell me how to connect the TN3270 mainframe to Uipath and it has a extension of .cfg of IBM Mainframes. I had used all providers in the Terminal Session activity but not able to attach my mainframe of .cfg extension.

Kindly have a view on this once buddy
Hope this might help you

Cheers @sanju_RPA